diff --git a/.github/workflows/build-verification.yml b/.github/workflows/build-verification.yml
index d3e95032..dc4b15b8 100644
--- a/.github/workflows/build-verification.yml
+++ b/.github/workflows/build-verification.yml
@@ -12,10 +12,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up JDK 8
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '8'
+          java-version: '21'
           distribution: 'adopt'
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@v4
diff --git a/.github/workflows/cross-platform-testing-build-from-source.yml b/.github/workflows/cross-platform-testing-build-from-source.yml
index ccf20750..e36c4a24 100644
--- a/.github/workflows/cross-platform-testing-build-from-source.yml
+++ b/.github/workflows/cross-platform-testing-build-from-source.yml
@@ -13,10 +13,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up JDK 8
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '8'
+          java-version: '21'
           distribution: 'adopt'
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@v4
diff --git a/.github/workflows/development-release.yml b/.github/workflows/development-release.yml
index 7aff65c2..00a1c2c8 100644
--- a/.github/workflows/development-release.yml
+++ b/.github/workflows/development-release.yml
@@ -15,10 +15,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up JDK 8
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '8'
+          java-version: '21'
           distribution: 'adopt'
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@v4
diff --git a/.github/workflows/production-release.yml b/.github/workflows/production-release.yml
index 4884434b..e40441cc 100644
--- a/.github/workflows/production-release.yml
+++ b/.github/workflows/production-release.yml
@@ -15,10 +15,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up JDK 8
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '8'
+          java-version: '21'
           distribution: 'adopt'
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@v4